Micrometer-gage.



No. 684,691. 1 Patented oet. l5, |901.

w. E. Mauss.

MICRUMETEB GAGE.

(Application led Mai. 23, 1901.)

(No Model.)

n Wp i a W/TNESSES l @Mew *www `UNITED STATES PATENT OFFICE.

VILLIAM E. JACQUES, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR OF TWO- TIIIRDS TO DONALD E. WEBSTER, OF SAME PLACE.

MICROIVIETER-GAG E.

SPECIFICATION forming* pari: 0f Letters Patent NO. 684,691, dated O'Ct'olo 15, 1901. Application filed March 23, 1901. Serial No. 52,533. (No model.)

To @ZZ whom, t may] concern:

Be it known that I, VILLIAM E. JAQUES, a resident of Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Micrometer-Gages; and I do herebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in micrometer-gages, and pertains more especially to a tool suitable for use in making micrometric measurements and as a scale to set calipers by.

The object of this invention is to provide an exceedingly convenient tool of the character indicated and to render the construction simple and durable and reliable in its operation.

With this object-in view the invention con-- sists in certain features of construction and combinations of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figures I and II are opposite side elevations, respectively, of my improved gage or tool. Fig. III is a central longitudinal section on line III III, Fig. I, looking in the direction indicated by the arrow. Fig. IV is a central longitudinal section corresponding with Fig. III, eX- cept that in Fig. lVthe shoulder-forminghead of the endwise-shiftable rod of the tool is shown closed against the relativelystationary coperating bar of the tool. Figs. I, II, III, and IV showa full-sized tool. Fig. V is an enlarged central longitudinal sect-ion 0f a portion of the tool, showing, among other things, the rod-operating sleeve, the sleeve-engaging segments of the rod, and the bearings for the sleeve. Fig. VI is a central longitudinal section on line VI VI, Figs. III and V. Fig. VII is a transverse section on line VII VII, Fig. V, looking in the direction indicated by the arrow.

Referring to the drawings, u. designates an f endwiseshiftable rod which extends centrally and longitudinally through and has bearing in a relatively stationary bar b. The bar is consequently tubular for accommodating the reception and operation of the rod a. The rod d at one end of the bar h is pro` vided with ahead c and at its opposite end has two externally and peripherically screwthreaded segments d and a', arranged at op- 55 posite sides, respectively, of the rod and engaged and embraced by a correspondingly internally screw-threaded sleeve e, which is rendered stationary so far as endwise movement thereof is concerned in any approved 6o manner, so that the rod CL is shifted in the one direction or the other, according as the sleeve e is rotated in the one or the other direction. Preferably the sleeve c is confined endwise between the adjacent end of the bar l) and a nut h, which is mounted upon and. engages two correspondingly-screw-threaded and oppositely-arranged segments b2 and b2, formed by the outer or free ends of two arms band b', which are rigid with the bar l) and project 7o from the said bar b between the segments d and o. at opposite sides, respectively, of the rod ct and extend through the sleeve e. The arms b are wide enough to occupy the spaces between the segments el, and the side edges of the said arms slope to conform to the sloping sides of the said segments. The arms b and b form, therefore, slideways for the slide-forming threaded segments a and a and prevent circumferential displacement of the said seg- 8o ments and the connected rod a. The arms b and b' and the sleeve e are of course long enough to accommodate the required range of movement of the rod a. Preferably the inner end of the nut 7L and the opposing end 85 of the bar b are reduced diametrically to form an annular shoulder l0, and the sleeve c is mounted upon the said shoulders lO and l0 of the bar b and the nut h and has, preferably, two annular internal shoulders e' and go c2 next adjacent the opposing surfaces of the bar b and nutt, respectively.

A screw l engages with threads of the nut h and has its inner end terminating ina wedge Z', extending between and engaging the seg- 95 lnents b2, formed, as already indicated, by the t v outer ends of the arms b and b of the bar Z). The wedge Z is instrumental when the parts are assembled in suitably spreading the segments b2 and b2 apart and establishing a close Ico engagement between the threads of the said segments and the threads of the nut h, so that the nut will not be liable to become loose.

By the construction hereinbefore described it is obvious that the head c of the rod a is shifted toward or from the adjacent end of the bar b, according as the slide -forming threaded segments a and a and the connected rod a are shifted endwise in the one direction or the other by turning the sleeve e in the one or the other direction.

The head c of the rod a is perforated centrally and longitudinally, as at c', to accommodate the reception of a screw m, which engages a correspondingly threaded hole a2, formed in and centrally and longitudinally of the adjacent end of the rod a. The screw m therefore removably secures the head c to the rod a. The detachable head c is important to accommodate a separation and assemblage of the parts when rendered necessary for'any reason, because the rod o, as the segment forming and sleeve-engaging end thereof is diametrically larger than the bore of the bar b, can only be removed from and introduced into the said bar at the sleeve-engaging end of the bar, and the spring r, hereinafter referred to, can only be' introduced or removed from the bar at the bars opposite end.

The rod a on the inner end of the head cis externally provided in any approved manner with a scale s, which extends from the head c alo-'ng the said rod a a suitable distance. Preferably the head c is formed upon the outer end of a sleeve or collar c2,` which snugly embraces the rod ct and extends into the bore of the bar b a suitable distance. The surrounding wall of the said bore affords bearing for the sleeve or collar c2, and the spiral spring fl' is lnounted and confined upon the roda between the free end of the sleeve or collar c2 a-nd an annular shoulder b5, formed upon the sa-id'wall a suitable distance from the collar c2. The spring r is under tension and acts to push the head c outwardly, and

-consequently is effective in taking up any lost motion between the mutually-engaging threads of the sleeve e and the slide-forming segments d. .j

The bar b upon one side is provided with a row of shoulders b3, arranged at equal intervals longitudinally of the bar and at .right angles to the plane of movement of the rod a, and the said bar is provided also, but upon its opposite side, with another row of shoulders b4, arranged at equal intervals longitudinally of the bar and at right angles to the line of movement of the rod a, and preferably each shoulder of each row of shoulders is arranged directly opposite a shoulder of the other row of shoulders. The shoulders b4 face in the direction of the head c of the rod a, and the shoulders b3 face in the opposite directionvizi., toward the sleeve e. The head c is provided with two external shoulders c3 and c4, that are arranged in line with the'diderent aforesaid rows of shoulders,respectively. The

shoulder c3 upon one side of the head c and in line with the row of shoulders b3 of the barb faces in a direction opposite to the direction irl-which the said shoulders b3 face, and consequently faces away from the bar b, so that the said shoulder c3 of the head c and any shoulder of the said row of shoulders ha of the bar h form two coperating surfaces or points by which to set internal calipers. The other shoulder c4 of the head c faces the shoulders of the row of shoulders h4 of the bar h, and consequently the said shoulder c4 of the head c and any shoulder ofthe said row of shoulders b4 of the bar l2 form two cooperating surfaces or points suitable for s etting external calipers by.

The shoulders of each row of shoulders of the bar b are in the tool illustrated arranged a quarter of an inch apart, and the arrangement of the shoulders of the head c relative to the rows of shoulders of the bar o is such that each shoulder of the head c, when the said head has been actuated by a proper manipulation of the sleeve c against the bar b, as shown in Fig. IV, shall be one-quarter of an inch from the rst or nearest shoulder of tho coperating row of shoulders of the said bar b.

The shoulders c3 and c4 of the head c are formed, preferably, by suitably recessing the said head externally. The shoulders b3 and b4 of the bar l) are similarly formed by r`e cesses in the exterior of the bar.

The range of movement of the rod a' is in the tool illustrated equal to the distance apart of two adjacent caliper-setting shoulders of the rows of shoulders ofthe said bar, and consequently the scale upon the collar c2 of the rod ais used for indicating large fractions of the distance between two adjacent caliper-setting shoulders or points of the bar l).

The sleeve c is provided at each end and externally with a graduated scale s', extending circumferentially of the said sleeve, and the bar b and the nut h are each provided externally, next to the adjacent end of the sleeve, with a line or mark s2 for use in the reading of the scales upon the sleeve. Obviously, the scales s' upon the sleeve are for the purpose v of indicating the fractions of the divisions of the graduated scale s of the head c of rod a. As graduated scales of the character indicated are well understood, a more extended description or illustration thereof is not considered necessary in this application.

Obviously my improved construction of gage or tool not only renders possible the use of two systems of measurement upon the tool, if desired, but is exceedingly meritorious on account of its simplicity, compactness, and durability. It will be observed also that 'my improved device is suitable for use in measuring thicknesses of paper and other objects between the opposing surfaces of the bar b and the head c of the rod et. I would remark also that` the sleeve e is circular externally in end elevation and that the scale-forming portions of the said sleeve are formed, prefer- IOO IIO

ably, by metal collars or rings e3, having the dimensions required to render them capable of being forced onto the ends of the sleeve against shoulders e4, formed upon the body portion of the sleeve. It is of course important that when the head c is closed against the adjacent end of the bar b the zero graduations of the scales s' should be in line with the index marks or lines s2 of the said bar ZJ and the nut 71., and obviously by the construction hereinbefore described the said rings or collars are capable of adjustment circumferentially upon applying the requisite force or capable of being forced off the sleeve and again forced thereon into the required position, so as to bring the zero graduatious of the sleeve e into line with the marks or lines s2 ofthe nut 7L and the bar b when the head c, as shown in Fig. IV, is closed against the adjacent end of the bar b.

What I claim is 1. A gage or tool of the character indicated, comprising a tubular bar; an endwise-shiftable rod extending through and having bearing in the said bar; which rod is provided, at one end and externally of the aforesaid bar, with a head and a scale extending from the inner end of the head longitudinally of the rod, and has an externally-screw-threaded segment at its opposite end; means for preventing circumferential displacement of the said segment and rod; a rotary correspondingly internally screw-threaded sleeve engaging the said segment, and means for preventing endwise displacement of the sleeve, substantially as and for the purpose set forth.

2. A gage or tool of the character indicated, comprising a tubular bar b provided, at one end, with two projecting slideway-forming arms h and h; an endwise-shiftable rod extending through and having bearing in the said bar and between the said arms and provided with an externally-screw-threaded segment snugly but slidably interposed between the said arms; which rod is provided, at its opposite end and externally of the aforesaid bar, with a head; a rotary correspondingly internally screw threaded sleeve engaging the said segment; and means for preventing endwise displacementof the sleeve, substantially as and for the purpose set forth.

3. A gage or tool of the character indicated, comprising a tubular bar; an endwise-shiftable rod extending through and having bearing in the said bar, which rod is provided, at one end and externally of the aforesaid bar, with a head and a scale extending from the inner end of the head longitudinally of the rod, and has two oppositely-arranged externally-screw-threaded segments at its opposite end; means for preventing circumferential displacement of the segments; a rotary correspondingly internally screw-threaded sleeve engaging both segments, and means for preventing endwise displacement of the sleeve, substantially as and for the purpose Set forth.

4. A gage'or tool of the character indicated, comprising a tubular bar b provided, at one end, with two projecting slideway-forming arms h and h; an endWise-shiftable rod extending through the said bar and between the said arms and provided with two opposite] y arranged extern ally screw threaded segments snugly. but slidably interposed between the said arms, which rod is provided, at its opposite end and externally of the aforesaid bar, with a head and a scale extending from theinner end of the head longitudinally of the rod; a rotary correspondingly internally screw threaded sleeve engaging the said segment, and means for preventing endwise displacement of the sleeve, substantially as and for the purpose set forth.

5. A gage or tool of the character indicated, comprising a tubular bar b provided, at one end, with two projecting slideway-forming arms b and Z9 terminating at their outer ends in externally-screw-threaded segments b2 and h2; an endwise shiftable rod extending through the said bar and between the said arms and provided with an externally-screwthreaded segment snugly but slidably interposed between the said arms, which rod is provided, at its opposite end and externally of the aforesaid bar, with a head and ascale extending from the inner end of 'the head longitudinally of the rod; a rotary correspondingly internally screw-threaded sleeve engaging the said segment, and a nut engaging with the threads of the aforesaid armsegments h2, substantially as and for the purpose set forth.

6. A gage or tool of the character indicated, comprising a tubular bar h provided, at one end, with projecting slideWay-forming arms h terminating at their ends in externallyscrewthreaded segments b2; an endwiseshiftable rod extending through the said bar and between the said arms and provided, at one end, with an externally-screw-threaded segment snugly but slidably interposed between the said arms, which rod is provided, at its opposite end and externally of the aforesaid bar, with a head and a scale extending from the inner end of the head longitudinally of the rod; a rotary correspondingly internally screw-threaded sleeve engaging the said segment; a nut engaging with the threads of the aforesaid arm-segments h2, and a screw engaging with threads of the outer portion of the nut and terminating at its inner end in a wedge extending between and arranged to spread apart the aforesaid arm-segments b2, substantially as and for the purpose set forth.

7. A gage or tool of the character indicated, comprising a tubular bar reduced diametrically'at one end to form an annular shoulder l0 and having the said end provided with the two projecting slideway-forming arms b and b terminating, at their outer ends, in two oppositely arranged and externally screwthreaded segments h2 and h2 an endwise-shift- IOO I'Io

able rod extending through the said bar between the said arms and provided, at one end, with the two oppositely-arranged externallyscrew-threaded segments a and a snugly but slidably arranged between the aforesaid arms b, which rod is provided, at its opposite end and externally of the aforesaid bar, with a head and a scale extendingfrom the inner 'end of the head longitudinally of the rod; a nut engaging with threads of the aforesaid arm-segments h2 and reduced diametrically at its inner end to form an annular shoulder 10, and a rotary internally screw threaded sleeve engaging with threads of the rods segments a and mounted upon the aforesaid shoulders 10 and confined endwise between the nut and the bar, substantially as and for the purpose set forth.

8. Agage or tool of the character indicated, comprising a tubular bar havinga row of external shoulders spaced equidistantly longitudinallyof the bar and facing toward one end of the bar; an endwise-shiftable rod extending through and having bearing in the said bar and provided, at one end and externally of the bar, with a head having a shoulder arranged in line with the aforesaid shoulders of the bar but facing in the opposite direction, which rod is provided with a scale extending from the inner end of the head longitudinally of the rod, and means for shifting the rod endwise, substantially as and for the purpose set forth.

9. Agage or tool of the character indicated, comprising a tubular bar havinga row of external shoulders spaced equidistantly longitudinally of the bar and facing toward one end ot' the bar and having another row of shoulders spaced equidistantlylongitudin ally of the bar and facing in the opposite direction; an endwise-shiftable rod extending through and having bearing in the said bar, and provided, at one end and .externally of the bar, with a head having two shoulders arranged in line with the different aforesaid rows of shoulders, respectively, but facing in the opposite direction, which rod is provided with a scale extending from the inner end of the head longitudinally of the rod, and means for shifting the rod endwise, substantially as -the said bar, and provided, at one end and exesigei ternally of the bar, with a head c having the two external shoulders c3 and c4 arranged in line with the different aforesaid rows of shoulders b3 and b4, respectively, but facing in the opposite direction, which rod is provided with a scale extending from the inner end of the head longitudinally of the rod, and means for shifting the rod endwise, substantially as and for the purpose set forth. v

1l. A gage or tool of the character indicated, comprising a tubular bar provided internally with the shoulder h5,- an endwise-shiftable rod extending through and having bearing' in the said bar; the sleeve or collar c'2 mounted upon one end of the said rod and provided externally of the bar with a head c detaehably secured to the rod; a spiral spring mounted and confined upon the rod between the aforesaid sleeve or collar and the aforesaid shoulder, and means for shifting the rod endwise, substantially as and for the purpose set forth.

12. Agage or tool of the character indicated, comprising a tubular bar h reduced at one end to form an annular shoulder 10 and provided externally and at the said end with an index mark or line s2, and having the said end provided With two projecting slideWay-forming arms b and b' terminating, at their outer ends, in externally screw threaded segments b2 and b2; an endwise-shiftable rod extending through the said bar between the said arms and provided at one end with an externallyscrew-threaded segment al snugly but slidably arranged between the aforesaid arms, which rod is provided, at its opposite end and externally of the bar, with a head c, and a scale extending from the inner end of the head longitudinally of the rod; a nut h engaging with threads of the aforesaid arm-segments h2 and reduced diametrically atvits inner end to form an annular shoulder 10 and provided externally with an index mark orline s2, and a rotary intern ally-screw-threaded sleeve e engaging-with threads of the aforesaid rods segment a and mounted upon the aforesaid shoulder 10 and confined endwise between the nut and the bar, and provided at each end and externally with a graduated scale s extending cireumferentially of the sleeve,which sleeve is circular externally in end elevation and has each scale s formed by a ring or collar e3 forced onto the body portion of the sleeve, substantially as and for the purpose set forth.

Signed by me at Grand Rapids, Michigan, this 18th day of March, 1901.

VILLIAM E. JAQUES.

Witnesses:

F. H. CLARKE, D. E. WEBSTER.

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